Monkfish Gratin

Ingredients

• 1/3 c. butter or margarine, melted
• 3/4 c. fresh bread crumbs
• 3 garlic cloves, chopped fine
• 1/3 c. minced fresh parsley
• 1 Tbsp. fresh lemon juice
• salt and freshly ground pepper
• 1 1/2 lb. monkfish, membrane removed and cut diagonally into 1/2-inch thick medallions
• lemon wedges (for serving)
• 6 to 12 frozen puff pastry patty shells
• 1/4 c. unsalted butter or margarine
• 1 lb. peeled crawfish tails
• 1/2 lb. (1-inch) mushrooms
• 1 c. Seafood Stock or 1 (8 oz.) bottle clam juice
• 1/2 pt. whipping cream (1 c.)
• salt and finely ground black pepper to taste
• red cayenne pepper to taste
• dash of onion powder
• dash of garlic powder
• 1 1/2 Tbsp. minced parsley
• 3 green onions, chopped
• curly parsley sprigs